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By-law 2010-0050 · Environmental and Open Space Zones

OS1 · Open Space One

OS1 is the Open Space One zone under the Town of Halton Hills' Comprehensive Zoning By-law 2010-0050. It is drawn on 20 zone polygons covering about 128 hectares.

Last checked October 8, 2026Town of Halton HillsHow we know
Publisher
Town of Halton Hills
Source dataset
Zoning By-law 2010-0050 (Town of Halton Hills MapLinks layer)
Official record
Part 10 of Comprehensive Zoning By-law 2010-0050 (PDF, Town of Halton Hills)
Retrieved
October 8, 2026
Licence
Town of Halton Hills Open Data License (MapLinks layers reused with the Town's permission) Terms
From the source
the zone code on each polygon · the zone's name, from Section 2.1, Zones (Comprehensive Zoning By-law 2010-0050, December 2025 office consolidation) · the exception and holding markers on each polygon
Derived by HaltonHillsIQ
polygon count and hectares, from each polygon's outline · and wards, by the point inside each polygon · the simplified outlines on the map
HaltonHillsIQ’s words
the summary sentence
Kept current
Rebuilt from the Town of Halton Hills' layer by the site's data pipeline; every count on this page is from the record checked October 8, 2026.
At a glance
Zone code
OS1
Name in the by-law
Open Space One
By-law
Comprehensive Zoning By-law 2010-0050
Zone group
Environmental and Open Space Zones
Polygons
20
Hectares
128
With a site-specific exception
0
With a holding provision
0
0
OS1 zones under By-law 2010-005020 of 20 zone polygons drawn, largest first.OS1 · 40.483 haOS1 · 13.703 haOS1 · 11.217 haOS1 · 9.886 haOS1 · 8.28 haOS1 · 7.643 haOS1 · 5.803 haOS1 · 5.6 haOS1 · 5.169 haOS1 · 5.059 haOS1 · 5.027 haOS1 · 3.449 haOS1 · 3.109 haOS1 · 1.481 haOS1 · 1.288 haOS1 · 0.326 haOS1 · 0.296 haOS1 · 0.113 haOS1 · 0.093 haOS1 · 0.021 ha
OS1 zone polygons (By-law 2010-0050)The outline is the Town of Halton Hills boundary.

Where OS1 applies

Polygons and hectares by the Town of Halton Hills’ outlines, each polygon placed by a point inside it. 20 zone polygons fall outside every outline.

Wards: Ward 3 (8), Ward 1 (5), Ward 2 (4), Ward 4 (3).


Exceptions, holding and other markers

The markers the layer records on OS1 polygons. Their terms are written only in the by-law; each line says where.

Drawn over another polygon
1 zone polygon sit inside another polygon on the layer (the map draws one zone over another without cutting a hole). Their hectares are counted here and in the other zone; the by-law map decides which applies.

What the zone permits

The permitted uses and regulations for OS1 are set out in Part 10 of Comprehensive Zoning By-law 2010-0050 (PDF, Town of Halton Hills). HaltonHillsIQ does not paraphrase them: an exception, a holding provision or a later amendment can change what applies to one lot. The Town of Halton Hills’ Compliance Memo Request is the Town of Halton Hills’ own answer for a property. The interactive zoning map shows the zone on a single lot.

Sources

Every factual claim above traces to one of these documents.

  1. Town of Halton Hills

    Zoning By-law 2010-0050 (Town of Halton Hills MapLinks layer)

    Retrieved October 8, 2026

  2. Town of Halton Hills

    Comprehensive Zoning By-law 2010-0050 (PDF, Town of Halton Hills)

    Retrieved October 8, 2026

  3. Town of Halton Hills

    Zoning (Town of Halton Hills)

    Retrieved October 8, 2026

Town of Halton Hills Open Data License (MapLinks layers reused with the Town's permission). Terms. Records checked October 8, 2026.